/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundFrontendDocumentBuilder.h
Returns whether or not the given edge is valid (i.e. represents an input and output that equate in data and access types) or malformed. Note that this does not return whether or not the given edge exists, but rather if it could be legally applied to the given edge vertices.
[Metasound::Frontend::EInvalidEdgeReason](API\Plugins\MetasoundFrontend\Metasound__Frontend__EInvalidEdg-) IsValidEdge ( const [FMetasoundFrontendEdge](API\Plugins\MetasoundFrontend\FMetasoundFrontendEdge) & InEdge ) const